LYCOS RETRIEVER 
Headaches: Symptoms
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Tyramine headaches can come on immediately after eating the offending foods but may take as long as 12 hours. Caffeine withdrawal-induced headaches usually start eight to eighteen hours after a person has had his last dose and peak three to six hours later. Most allergic reactions develop within four hours of ingestion, though delayed reaction allergies can take up to 72 hours to produce symptoms. If timing and symptoms are not enough to pinpoint the source, the sufferer should start a food diary. Listing everything eaten over at least a 7-day period, along with the symptoms, may help identify the guilty foods. Of course, food is not the only cause of recurrent headaches.
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A potentially serious bacterial disease called ehrlichiosis, caused by the lone star tick, has headaches as a symptom. If you ... have fever, fatigue, muscle aches, chills, nausea, and diarrhea, you probably have this disease. See your doctor for proper treatment. Since antibodies don't show up sometimes for a month, blood tests won't detect ehrlichiosis until after you have started treatment.
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Cluster headaches are about six to nine times more likely to strike men than women. The first attack usually appears in a person's 20s or 30s. They are sometimes misdiagnosed as a sinus disorder (because stuffy nose or sinus congestion is a common symptom) or as an abscessed tooth. There's no clear cause, though heavy smoking and drinking are possible contributing or triggering factors.
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Cluster headaches usually start in children older than 10 years of age, and are more common in adolescent males. Cluster headaches usually occur in a series that may last weeks or months, and this series of headaches may return every year or two. While every child may experience symptoms differently, the following are the most common symptoms of a cluster headache:
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Very few headaches have an organic cause, such as brain tumor or aneurysm. Headache is not a prominent symptom of brain tumor: if present, headache will become progressively worse and constant, and it may not appear until late in the course of the tumor development. The headache associated with an aneurysm is usually mild until the aneurysm is at the point of rupture. If a patient complains of an exceptionally severe headache, organic disease, such as aneurysm, must be ruled out. See ... Aneurysm.
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Biofeedback therapy is many times helpful for reducing headaches and stress by helping you learn to relax. Exercise and avoidance of stressful situations and anxiety will often reduce the number of headaches you experience. Walking is a simple exercise which any one who is ambulatory can do and is a great overall symptom reducer which has the added benefit of reducing your risk for many diseases including heart disease.
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